Playing ball, float, and the like



M.M.DESSAU PLAYING BALL, FLOAT, AND THE LIKE Filed April 19,

Inventor WM flkawm I27 762 attorm ay Patented Nov. 6, 1923;.

MORLAND MICHOLL DESSAU, OF LONDON, ENGLAND.

PLAYING BALL, FLOAT, AND THE LIKE.

Application filed April 19, 1923. Serial No. 633,290.

To all whom it may concern:

Be it known that I, MORLAND MICHOLL DESSAU, a citizen of the UnitedStates of America, residing at London, England, have inventedImprovements in or Relating to Playing Balls, Floats, and the like, ofwhich the following is a specification.

The present invention which relates to playing balls, floats and thelike, has for 0 its object to increase their resiliency or flotationproperties whilst maintaining the feature of solidity which preventscollapse through puncturing. To this end, in the case of playing balls,for example in lieu of employing a core of spongy rubber as hasheretofore been proposed encased within an outer covering of smooth anddurable india rubber, the invention consists in building up the core ofstrip material conveniently of the kind known commercially as plantationor crepe rubber, and smoked sheets, the said strip material in the rawstate being first twisted or otherwise acted 5 upon to impart a uniformor more or less irregular cord like character to it. The core which maybe built up entirely of such material, by winding, or partially of suchmaterial wound upon a nucleus of rubber, crumpled paper, fibre, metal,glass or other similar or suitable material may be subsequentlysubjected to a vuloanizing process, preferably a cold vulcanizingprocess such as that known as the Peachey process. In this way a core isobtainable having interstices bounded by walls of a relatively crisp orspringy nature which produces extreme resiliency and highly enhancedbouncing properties.

The ball may be completed by the provision of any of the usualcoverings.

Alternatively the cords may be dressed with sulphur or vulcanizingingredients and the whole or surface thereof may be vulcanized in theusual manner.

Or the materials of raw rubber used may be treated by first immersing inboiling alkaline solutions such as carbonate of soda, silicate of soda,potash or the like and cords formed from the mass, by spewing throughdies to any gauge.

The invention may be app-lied to tennis balls, golf balls, floats forvalves and fishing purposes, life buoys, cushions, bufi'ers of alldescriptions, washers and so forth.

In the accompanying drawings, Fig. 1 is a view illustrating a portion ofcrepe rubber strip partially twisted. Fig. 2 is a view of a ball withparts removed and partially in section in which strip according to Fig.1 is incorporated. Fig. 3 is a View of a fishing float according to theinvention. Fig. 4 shows forms of rubber cord hereinafter referred to.

As shown in Fig. 2, a nucleus a .of crumpled paper has wound thereon thetwisted strip material I), and having an outer cover 0 of ordinarysmooth rubber.

The float in Fig. 3 comprises an outer covering d of smooth rubber theinterior of which is filled with twisted rubber strip as referred to.

A nucleus of solid crepe or smoked sheet rubber, or rubber disintegratedor devilled, may be formed and wound with the cord.

If preferred, a cord 0 may be formed with transverse strips 7 as shownin Fig. 4, so as to produce a multiplicity of air cells 9 when wound. 7

I am aware that it has been proposed to u make balls for use ingolf andthe like games of twisted rubber bands or tapes which have been formedplain and flat, perforated to form a meshwork or netting or with surfacecorrugations, hollow cups or other projections or indentationsv as wellasconstituted of a number of threads or cords interlaced or tied bycross pieces, all of which expedient are directed to the formation ofair cavities, and no claim is made to any such means, the presentinvention being directed to the employment of raw rubbers of commercewhich have a naturally rough surface through the agency of which the aircavities are formed, these qualities being found in so called crepe orplantation smoked sheet rubbers.

What I claim is: I

1. In a device of the class described, in combination, a nucleus, stripsof crepe rubber twisted separately to form cords and Wound upon saidnucleus to form a body having air cells which increase its buoyancy anda cover for aid body.

2. In a device of the class described, in

5 combination, a nucleus, strips of crepe rubber twisted separately toform cords and wound upon said nucleus to form a body having air cellswhich lncrease its buoyancy,

said body having a vulcanized surface or cover integrral therewith. 10Signed at London, England this 23rd day of March, 1923.

MORLAND MICHOLL DESSAU.

